Answer:
y+2x=7 (1)
x=3+y (2)
Replace x = 3+y (2) into (1) => y+2(3+y) = 7
=> y = 1/3 and x = 3+1/3 =10/3
Step-by-step explanation:
Answer:
See below
Step-by-step explanation:
100 ft in 4 min = 25 ft/min
125 feet in 5 min = 25 ft min
so the height is d = 25 * m d = height m = minutes
25* 8 = 200 feet
Answer:
1. $7 for climbing the rock
Step-by-step explanation:
x is the number of laser tags
y is the number of times climbed the rock
a. 2x + 3y = 31
b. 4x + y =27
lets find y
<u>Step 1</u>
4x + y = 27
y = 27 -4x
<u>step 2</u>
replace y with 27 - 4x in the a.
2x + 3( 27 - 4x) = 31
2x + 81 - 12x = 31
2x -12x = 31 -81
x = 5
y = 27 - 4(5)
y = 7
Answer:
y < 3x + 
Step-by-step explanation:
6x > 2y - 5
<em>Adding 5 to both sides</em>
=> 6x + 5 > 2y
<em>=> </em>2y < 6x+5
Dividing both sides by 2
=> y < 
=> y < 
=> y < 3x + 
This is the required slope intercept form in the form 
Answer:
27 hours
Step-by-step explanation:
So t is going to represent time. $8t is equivalent to how much she makes for t amount of time. Being she is already down $16 for the gas, we have to take that into consideration that she must earn that back. Set up:
$8t - $16 = $200
Add like terms to get:
$8t = $216
Now solve for t by dividing both sides by $8.
t = 27 hours